Fundamental Concepts of Ion-Beam Processing.- Precipitate and Microstructural Stability in Alloys Subjected to Sustained Irradiation.- Spontaneous Patterning of Surfaces by Low-Energy Ion Beams.- Ion-Beam-Induced Amorphization and Epitaxial Crystallization of Silicon.- Voids and Nanocavities in Silicon.- Damage Formation and Evolution in Ion-Implanted Crystalline Si.- Point Defect Kinetics and Extended-Defect Formation during Millisecond Processing of Ion-Implanted Silicon.- Magnetic Properties and Ion Beams: Why and How.- Structure and Properties of Nanoparticles Formed by Ion Implantation.- Metal Nanoclusters for Optical Properties.- Ion Beams in the Geological Sciences.- Ion-Beam Modification of Polymer Surfaces for Biological Applications.